Daytona...and driver dumping?

In the aftermath of the daytona race tony stewart was beating himself up in victory lane that he thought he was a 'dirty racer' and did that to kyle busch but in the video it clearly shows that tony stewart tried to pass on the inside and got blocked when he went on the outside kyle busch went up to try and block him but ended up in the wall. Now let me ask you this Who is at fault here? The driver that won the race or the driver that put himself into the wall? Kyle Busch can say he got 'dumped' but if you view the footage it clearly shows that he brought it on himself by trying to block tony and not know he was there. So in the end i guess you can say it's 'Plate Racing' and that's what is gonna happen. Also what happens on a plate track should stay on a plate track. Tony Stewart should of had the right to celebrate not the right to blame himself and Kyle Busch should know that if you block someone once that's fine but do it twice and in the wall you go.